App update

Submodule web/app 09b1453..e154fd8:
  > Add the reference preview for the marks search page
  > Add the names for the writer palms
  > Retrieve all marks from the database, even if no additinal informations is present
  > Split the configuration file to run on localhost
  > Set the 'pianosendpoint' value to None if no PiAnoS server is available
  > Basic mark detail popup on the search page